You can find our selection of parts for your Chronarch 101 BPV on the following page:
Improvement Shimano Chronarch 101 BPV
– Open the side plate to access the adjustment weights; the first bearing is located above it. To remove it, simply remove the metal clip holding it in place. You can use a precision screwdriver for this.
PLEASE NOTE: you should hold it in place with your finger to stop the part flying off when it comes loose!
-Carefully remove the orange part (the seal) that protects the bearing using a sharp object (in this case, a fishhook). You can remove one or both – it’s up to you.
– Apply a drop of special bearing oil to the bearing. It’s then up to you whether or not to replace the seal. Fitting it protects the bearing from dirt but must be removed every time you want to oil the bearing, whereas leaving it off simplifies maintenance but leaves the mechanism more exposed. I opted for the second option.
– Place the new bearing in its housing and put the small metal part back in place.
– You can close the sideplate. The second bearing is located in the friction brake lever at Shimano
– Unscrew the knob
– Remove the bearing (if it is really stuck, removing the spool via the sideplate may make it easier to take out).
– Fit the new bearing after first oiling it as described above.
– Replace the small metal part and screw the knob back on.
It couldn't be simpler – it only takes two minutes! Ceramic bearings are a bit noisier than others, but don't worry, that's perfectly normal.